In Chrome (2.0.1) the column grouping does not quite present properly. The grouping column does not align with the "sub" columns.

This can be see in the demo: http://extjs.com/examples-dev/explorer.html#columngrouping

And in the picture attached.

GXT Bug Chrome Column grouping.jpg

Note that grabbing and adjusting a column fixes all alignment issue, so this appears to only be the initial render

Regards,
Carl Pritchett